//Function to check form is filled in correctly before submitting
function CheckForm () {
	
	var errorMsg = '';
	
	//Check for message
	if (document.frmAddMessage.message.value==''){
		errorMsg += "\n\t内容: \t\t- 请输入内容再发送";
	}
	
	//If there is aproblem with the form then display an error
	if (errorMsg != ""){
		msg = "_______________________________________________________________\n\n";
		msg += "The form has not been submitted because there are problem(s) with the form.\n";
		msg += "Please correct the problem(s) and re-submit the form.\n";
		msg += "_______________________________________________________________\n\n";
		msg += "The following field(s) need to be corrected: -\n";
		
		errorMsg += alert(msg + errorMsg + "\n\n");
		return false;
	}
	
	//Reset the submition action
	document.frmAddMessage.action = 'article_display.asp'
	document.frmAddMessage.target = '_self';
	
	return true;
}



//Function to open preview window
function OpenPreviewWindow(targetPage, formName){
	
	now = new Date  
	
	//Open the window first 	
   	openWin('','preview','toolbar=0,location=0,status=0,menubar=0,scrollbars=1,resizable=1,width=680,height=400')
   		
   	//Now submit form to the new window
   	formName.action = targetPage + "?ID=" + now.getTime();	
	formName.target = "preview";
	formName.submit();
}

//Function to open pop up window
function openWin(theURL,winName,features) {
  	window.open(theURL,winName,features);
}